California Quarterly Tax Payments 2024. The due date to file your california state tax return and pay any balance due is april 15, 2024. Submit separate payments for different tax years to ensure we process your payments timely and accurately.

California quarterly estimated tax payments were originally due on april 18 (q1), june 15 (q2), september 15 (q3), and january 16 (q4). In this guide, we will explore the ins and outs of california quarterly estimated tax payments, including who needs to pay, how to calculate payments,.